package com.cy.pj.sys.service.impl;

import com.cy.pj.common.exception.ServiceException;
import com.cy.pj.common.pojo.PageObject;
import com.cy.pj.sys.dao.SysUserDao;
import com.cy.pj.sys.dao.SysUserRoleDao;
import com.cy.pj.sys.pojo.SysUser;
import com.cy.pj.sys.pojo.SysUserDeptVo;
import com.cy.pj.sys.service.SysUserService;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.crypto.hash.SimpleHash;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.thymeleaf.util.StringUtils;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

@Slf4j
@Service
public class SysUserServiceImpl implements SysUserService {
    @Autowired
    private SysUserDao sysUserDao;

    @Autowired
    private SysUserRoleDao sysUserRoleDao;
    @Override
    public int updateObject(SysUser entity,Integer[] roleIds) {
        //1.参数有效性验证
        if(entity==null)
            throw new IllegalArgumentException("保存对象不能为空");
        if(StringUtils.isEmpty(entity.getUsername()))
            throw new IllegalArgumentException("用户名不能为空");
        if(roleIds==null||roleIds.length==0)
            throw new IllegalArgumentException("必须为其指定角色");
        //其它验证自己实现，例如用户名已经存在，密码长度，...
        //2.更新用户自身信息
        int rows=sysUserDao.updateObject(entity);
        //3.保存用户与角色关系数据
        sysUserRoleDao.deleteObjectsByUserId(entity.getId());
        sysUserRoleDao.insertObjects(entity.getId(),
                roleIds);
        //4.返回结果
        return rows;
    }

    @Override
    public Map<String, Object> findObjectById(Integer userId) {
        //1.合法性验证
        if(userId==null||userId<=0)
            throw new IllegalArgumentException(
                    "参数数据不合法,userId="+userId);
        //2.业务查询
        SysUserDeptVo user=
                sysUserDao.findObjectById(userId);
        if(user==null)
            throw new ServiceException("此用户已经不存在");
        List<Integer> roleIds=
                sysUserRoleDao.findRoleIdsByUserId(userId);
        //3.数据封装
        Map<String,Object> map=new HashMap<>();
        map.put("user", user);
        map.put("roleIds", roleIds);
        return map;
    }


    @Override
    public PageObject<SysUserDeptVo> findPageObjects(String username, Integer pageCurrent) {
        if (pageCurrent == null || pageCurrent < 1) {
            throw new IllegalArgumentException("当前页码值无效");
        }
        //2.查询总记录数并进行校验
        int rowCount = sysUserDao.getRowCount(username);
        if (rowCount == 0) {
            throw new ServiceException("没有找到对应记录");
        }
        //3.查询当前页记录
        int pageSize = 2;
        int startIndex = (pageCurrent - 1) * pageSize;
        List<SysUserDeptVo> records =
                sysUserDao.findPageObjects(username,
                        startIndex, pageSize);
        //4.对查询结果进行封装并返回
        return new PageObject<>(rowCount, records, pageCurrent, pageSize);

    }

    @Override
    public int validById(Integer id, Integer valid) {
        if (id == null || id < 0) {
            throw new IllegalArgumentException("你给的id值不合法");
        }
        if (valid == null || (valid != 1 && valid != 0)) {
            throw new ServiceException("参数不合法，valid=" + valid);
        }
        int rows = sysUserDao.validById(id, valid, "admin");

        if (rows == 0) {
            throw new ServiceException("此记录可能已经不存在");
        }
        return rows;
    }

    @Override
    public int saveObject(SysUser entity, Integer[] roleIds) {
        long start = System.currentTimeMillis();
        log.info("start" + start);
        if (entity == null) {
            throw new IllegalArgumentException("保存对象不能为空");
        }
        if (StringUtils.isEmpty(entity.getUsername())) {
            throw new IllegalArgumentException("用户名不能为空");
        }
        if (StringUtils.isEmpty(entity.getPassword())) {
            throw new IllegalArgumentException("密码不能为空");
        }
        if (roleIds == null || roleIds.length == 0) {
            throw new IllegalArgumentException("至少为用户分配一个角色");
        }

        String source = entity.getPassword();
        String salt = UUID.randomUUID().toString();
        SimpleHash sh = new SimpleHash("MD5", source, salt, 1);
        entity.setSalt(salt);
        entity.setPassword(sh.toHex());
        int rows = sysUserDao.insertObject(entity);
        //3.保存用户角色关系数据
        sysUserRoleDao.insertObjects(entity.getId(), roleIds);
        long end = System.currentTimeMillis();
        log.info("end:" + end);
        log.info("total time :" + (end - start));
        //4.返回结果
        return rows;
    }
}
